Multi-hood system for correcting individual lens distortions

Details Multi-hood system for correcting individual lens distortions Multi-hood system for correcting individual lens distortions

1997-03-27

1999-07-06

Mathews, Alan A.

Photocopying

Projection printing and copying cameras

With temperature or foreign particle control

355 52, 355 53, 359509, 359512, G03B 2752, G02B 312

Patent

active

059203773

ABSTRACT:
A multi-hood system for correcting individual lens distortions includes an air supply hood provided on an outer circumference of a lens; a plurality of air dividing partitions for dividing the air supply hood into a plurality of divided regions; and a plurality of air supply lines for individually supplying air of predetermined temperatures to the divided regions of the air supply hood.

REFERENCES:
patent: 4616908 (1986-10-01), King
patent: 4690528 (1987-09-01), Tanimoto et al.
patent: 4825247 (1989-04-01), Kemi et al.
patent: 5425045 (1995-06-01), Hamatani
patent: 5696623 (1997-12-01), Fujie et al.

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